Mitsubishi MELSEC-K Instruction Manual page 32

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[ E x a m p l e ]
I n t h e f o l l o w i n g i l l u s t r a t i o n , w h e n m o v e m e n t i s f r o m
z e r o p o i n t + p o i n t
A -
p o i n t
B
+ z e r o
p o i n t ,
( b a c k l a s h com-
p e n s a t i o n a m o u n t
l o ) ,
( 1 ) Z e r o p o i n t +
( 2 )
P o i n t
A +
p o i n t
B
Z e r o p o i n t
+*
.
--+
P ' o i n t
B
P o i n t
A
p o i n t
A
I
A d d r e s s 20
V I
I
200
400
.(3)
P o i n t B--$
z e r o ' p o i n t :
I n z e r o p o i n t - - ) p o i n t
A ,
a t t h e t i m e o f z e r o p o i n t s t a r t a f e e d
p u l s e c o m p e n s a t i o n o f 1 0 i s g i v e n , a n d a t
A 4 B ,
t h e r e i s n o
c o m p e n s a t i o n ,
r e s u l t i n g i n a n o p e r a t i o n l i k e t h a t s h o w n i n F i g .
P r e s e n t p o s i t i o n
4 0 0
2 0
Wumber o f
f e e d p u l s e s
1 9 0
2 0 0
B a c k l a s h
c o m p e n s a t i o n
Y e s
N o
3 9 0
1
Yes
F i g .
7..3
E x p l a n a t i o n
o f
b a c k l a s h c o m p e n s a t i o n e x a m p l e
-28-

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